A-33 加速度センサーを用いたリアルタイム競泳コーチングシステムの開発(センサ情報の活用ほか)

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  • A-33 Development of Realtime Coaching System for Swimmer using Acceleration Sensor

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The objective of this research is to develop a system which enables athlete swimmers and coaches to understand swimming motion in their training easily. Coaches will be able to grasp visually the real time situation of the swimmer with this system. This system is composed of an analytical PC, acceleration Sensor and information display unit. In this system, the analytical PC is located on poolside, and coach simply watches the software screen. Information display unit is installed in bottom of pool. The swimmer wears a tri-axial acceleration sensing unit. And this unit continues transmitting their acceleration value to PC in real time from water by wireless communication. PC analyzes pitch information, estimated velocity and assist information from this acceleration value. From this pitch information, coaches can grasp the state of the swimmer details such as estimated speed and time of each stroke of the swimmer. This is because a PC finds the correlation between acquired data in real time which every 1 acquires acceleration values and comparison data. Velocity estimation information is found by integrating acceleration. And PC converts these information into graph and definite advice, then displays the result that understandable visually. From the above, this system performs coaching assist of swimming race in real time.

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